If you are a professional working in the cleaning industry, often dealing with building exteriors, heavy machinery, and stubborn stains on driveways, then you’ll know how the right pressure washer can make all the difference in your work.
Yes, consumer-grade pressure washers may do the trick for some light-duty tasks (car washing, patio cleaning, etc.), but they just fall short when it comes to the power and durability needed for serious cleaning work. When you work with a professional-grade model, you can feel that you are dealing with a machine you can trust. One built to handle frequent, heavy-duty use with ease.
But how do you choose the right pressure washer? This guide breaks down the key features, including engine types, pumps, and water flow, to help you find the ideal fit for your job. Universal motors, for example, are a small, lightweight, and affordable option best suited for occasional use.
Introduction to Pressure Washers
Pressure washers, also known as power washers or jet washers, are versatile garden power tools used for cleaning various surfaces, including paving, patios, and decking. They are a great way to remove stubborn dirt and grime from outdoor areas, making them a must-have for homeowners and professionals alike. With the right pressure washer, you can tackle a range of cleaning tasks, from light cleaning to heavy-duty jobs. In this guide, we will explore the world of pressure washers, including how to choose the best pressure washer for your needs, how to use one safely and efficiently, and how to maintain and repair your pressure washer.
Ask Yourself: What Are My Cleaning Needs?
Before getting into the nitty gritty of specs and features, make sure you understand what you will use the pressure washer for. When you match the machinery with the task, that’s when you get the best results.
Consider the following:
- Surfaces: What are you cleaning more often? Bricks, decking, vehicles, machinery? More delicate surfaces like wood or car paint will need gentler settings. Hard surfaces like block paving and concrete driveways require higher water pressure.
- Frequency of use: Will you use your pressure washer occasionally, seasonally, or daily? You can find light, medium, and heavy-duty designs that can support you depending on the frequency of usage. For heavy duty tasks, ensure you choose a pressure washer with the appropriate power and specifications.
- Indoor or outdoor use: If you’re working mainly indoors, then opt for quieter, emission-free electric models. However, for outdoor cleaning, petrol pressure washers offer more punch.
- Type of dirt and debris: Will you be tackling loose mud, moss, grease, oil or graffiti? The type of grime can help you determine the pressure power (PSI) and flow rate you need.
Take the time to understand your needs. It will really help you narrow down your options and help you avoid over- or under-buying.
Electric or Petrol? That’s the Question
Now that you are certain a professional pressure washer is the thing you need to complete your task, it’s time to weigh your power source. Should you go electric or petrol?
Here’s a breakdown of both:
Electric Washers are ideal for indoor and light-duty tasks such as cleaning vehicles, garden furniture, windows or small patios.
- Pros: Generally more compact, lightweight, quieter, and easier to maintain.
- Cons: Limited in pressure power and water flow rate. Needs a power outlet. A stable power supply and water supply are essential for optimal performance.
- Perfect for: Occasional users and professionals working in enclosed spaces.
Petrol Pressure Washers are what you need for demanding and commercial jobs.
Pros: Greater cleaning power, higher pressure power, and a higher water flow rating. They offer complete mobility, as they don’t need a power outlet and can be used with a garden hose for greater flexibility.
Cons: Require more maintenance and are louder to run.
Perfect for: Outdoor settings, driveways, warehouses and construction cleaning work.
Specific features like auto start/stop and suction hoses can significantly reduce water usage while maintaining efficiency.
Keys Specifications to Look For
Beyond brand and power type, most professional cleaners know the key specifications you need to look for to find the perfect machine that will become your righthand man.
Here’s what you need to compare:
- Pressure Power (PSI): The greater the pressure, the greater the cleaning power. So, if you are looking for professional results, look for high PSI. Surface cleaners can also enhance the efficiency of your pressure washer, especially for tougher dirt and larger surface areas.
Light-duty: ~1,300–2,000 PSI
Medium-duty: ~2,000–3,000 PSI
Heavy-duty: 3,000+ PSI
- Water Flow (GMP – Gallons per Minute): This refers to the quantity of water that the pressure washer is able to deliver in a given period of time. Basically, the greater the flow rate, the shorter the washing time. Higher GPM is particularly beneficial for cleaning cars, as it ensures better coverage and faster rinse time.
For professional cleaning jobs, we recommend a GPM of 2.5 or higher.
- Pump Types: Consider the pump the heart of your pressure washer. It determines the longevity and performance of your machine. Electric pressure washers, which are suitable for clean cars and other light-duty tasks, often come with different pump types.
Wobble Pump: This one is found in entry-level models. It is sealed, non-serviceable and best for infrequent use.
Axial Cam Pump: This one offers an upgrade in durability and efficiency. It is best for medium-duty jobs.
Triplex Pump: These are designed for heavy-duty, commercial-grade work. Additionally, they are serviceable, long-lasting, and perform well under frequent use.
Understanding Pressure and Flow Rate
When it comes to pressure washers, understanding pressure and flow rate is crucial. Pressure is measured in bars, with higher bars indicating more powerful washers. Flow rate, on the other hand, is measured in liters per minute (L/min) or gallons per minute (GPM). The combination of pressure and flow rate determines the cleaning power of a pressure washer. For example, a pressure washer with high pressure and low flow rate is ideal for cleaning stubborn dirt and grime, while a pressure washer with low pressure and high flow rate is better suited for cleaning large surfaces. Most pressure washers allow varying pressure settings, making them suitable for a range of cleaning tasks.
Hot Water vs Cold Water
Another thing to consider is whether you need a pressure washer that runs on hot or cold water. Again, it depends on the kind of cleaning tasks you want to perform.
Cold water pressure washers are more budget-friendly, simple to use and maintain, and ideal if you need them for general cleaning tasks like removing mud, loose paint, dust, and debris. It’s the best choice for residential and outdoor work, where heat isn’t really essential. Keep in mind, however, that these pressure washers rely on pressure and flow only to lift dirt. You may struggle with sticky or oily residues.
Hot water pressure washers, on the other hand, are designed for more industrial cleaning. They are really excellent at breaking down grease, oil, and grime, especially when used with high-quality pressure washing chemicals. These are best used in automotive, food, and construction settings. On the downside, they may cost more in the beginning and be more complex to maintain, but you’ll see faster, deeper cleaning results. It is crucial to keep these machines properly maintained to avoid issues and ensure longevity.
Pressure Washer Accessories
Pressure washer accessories can enhance performance and make cleaning easier. Specialist attachments are available for different cleaning tasks, such as wash brushes, patio cleaners, and suction hoses. Detergents play a crucial role in efficient cleaning, and using the right detergent with a pressure washer makes cleaning quicker and easier.
When Power Meets Purpose
To find the pressure washer that works best for you, you need to make an informed decision. Consider all the factors, specifications, uses, and features. Take your time to research and understand which machine will best suit your needs.
But remember, power isn’t the only thing that matters. The purpose is just as important. You need to find a pressure washer made for your specific cleaning needs. Take the time to research and invest in quality, especially if you are dealing with demanding tasks that require strong equipment and effective pressure-washing chemicals. Water cooled motors are particularly beneficial for durability and performance, enhancing the longevity of your machine. Only then will you find an effective machine that saves you time and also withstands the test of time.
Final tip from us: If ever in doubt, choose the machine designed for your most demanding task, and you’ll be set for success, no matter the challenge. Additionally, consider models that can draw water from alternative sources like rainwater butts and buckets, which can be especially useful during hosepipe bans.
Pressure Washer Maintenance and Repair
Proper maintenance is essential to prevent issues with pressure washers. Regularly check and replace worn-out parts, such as seals and hoses. Clean the pressure washer after each use, and store it in a dry place. For petrol-powered pressure washers, check the fuel tank and oil levels regularly. By following these maintenance tips, you can extend the life of your pressure washer and ensure it continues to perform at its best.
Pressure Washer Safety Precautions
When using a pressure washer, it’s essential to take safety precautions to avoid injury and damage. Always wear protective gear, such as gloves and safety glasses. Keep children and pets away from the pressure washer, and never point the nozzle at people or animals. Be careful when using the pressure washer on different surfaces, as high pressure can damage certain materials. Always follow the manufacturer’s instructions, and take regular breaks to avoid fatigue.
